A. Lange & Söhne
Richard Lange 252.029— lug 20mm
A. Lange & Söhne Richard Lange 252.029: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
A. Lange & Söhne 252.029The essential strap measurement.
Browse 20mm straps →252.029
A. Lange & Söhne caliber L094.1 Hours, Minutes, Jumping Seconds | Constant Force Mechanism
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Richard Lange
FAQ
What is the lug width of the A. Lange & Söhne Richard Lange 252.029?
The A. Lange & Söhne Richard Lange 252.029 has a lug width of 20 millimetres. This measurement is the standard for this family of Lange timepieces and determines compatibility with aftermarket straps. To verify correctly, use a digital calliper to measure the distance between the strap attachment points on the case, from the inner edge of one lug to the opposite side.
Which strap is most suitable for the Richard Lange 252.029?
For the 252.029, an alligator leather strap in dark brown remains the classical choice, as the fine grain of the leather does not visually compete with the white gold and maintains the austere aesthetic of the dial. Equally valid is shell cordovan in burgundy tone, which develops a unique patina with age, or vegetable-tanned calf in caramel for those preferring a slightly warmer approach.
How do I change the strap on my A. Lange & Söhne Richard Lange 252.029?
Changing the strap on the 252.029 requires specific tools: a spring bar tool to carefully compress and remove the springs that secure the strap to the lugs, avoiding scratching the white gold case. For luxury watches such as the 252.029, it is advisable to entrust the operation to a specialist watchmaker who possesses professional tools and experience to maintain the integrity of the case.
Can I use an aftermarket strap on a luxury A. Lange & Söhne timepiece?
Yes, provided the aftermarket strap is constructed by specialised artisans and has a lug width of exactly 20 millimetres. Straps made by Casati Milano, for instance, are hand-stitched using selected leathers (alligator, shell cordovan, vegetable-tanned calf) and guarantee construction quality comparable to original straps, whilst offering greater aesthetic versatility and personalisation.
How long does a leather strap last on a watch like the Richard Lange 252.029?
The lifespan of a leather strap depends on frequency of use, type of leather and climatic conditions. A high-quality alligator or shell cordovan strap lasts approximately 4–7 years of regular use. Vegetable-tanned leather ages more rapidly but develops a fascinating patina. With proper care (avoiding excessive moisture, accumulated dirt and permanent creases), longevity increases substantially. Casati Milano guarantees 18 months against manufacturing defects.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com